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Tracing connectivity

In this subsection, we will create a demo project hosting a single httpd pod in order to see first-hand how the overlay network is constructed in OpenShift.

1. First, let's create the project:

# oc new-project demo...

2. Then, create a pod running Apache web server in the project:

# cat httpd-pod.yml apiVersion: v1kind: Podmetadata:  name: httpd  labels:    role: webspec:  containers:  - name: httpd    image: manageiq/httpd    resources:      requests:        cpu: 400m        memory: 128Mi# oc create -f httpd-pod.ymlpod "httpd" created

3. We will need the IP address allocated to the pod, as well as the address of the node it was scheduled to:

# oc describe po/httpd | grep '\(Node\|IP\):'Node: 172.24.0.13/172.24.0.13IP: 10.129.0.20

4. Another step is to get ...